Incarnadine Armor

Incarnadine Armor is an armor set usable by only Warriors and Shadow Knights, which drops in Chardok. Does this drop only from royals? This is either added late or removed at some point? A full set gives 138 ac, 28 Str, 29 Dex, 20 Agi, 10 Sta, 12 Int, and 25 hp if you have the Incarnadine Greaves. If you have the Incarnadine Legplates you get 145 ac, 33 Str, 29 Dex, 14 Agi, 4 Sta, 17 Int, 5 Wis and 25 Hp